I'm not quite sure what the issue might be here, but you can report a bug and/or make a suggestion using the help feature on the bottom left.
Unfinished game and tournament timer

One of my game in the tournament de lared my competitor winner while the time is not yet out and the game is not yet finished. Then another one is the timer.. the reason why i lose due to time is that your timer jumps.. i observed that fro 36sec doen to 24 anf from 16 to 11 sec.. kindly check your system or someone is manipulating it..
https://support.chess.com/article/423-why-did-the-clock-times-suddenly-change-the-clocks-seem-broken
If you still see time and the game was declared lost, you were likely disconnected from the live server process:
https://support.chess.com/article/213-how-do-i-fix-my-disconnect-lag-issues
One of my game in the tournament de lared my competitor winner while the time is not yet out and the game is not yet finished. Then another one is the timer.. the reason why i lose due to time is that your timer jumps.. i observed that fro 36sec doen to 24 anf from 16 to 11 sec.. kindly check your system or someone is manipulating it..